A Deep Web Portal ________

question 39

Multiple Choice

A deep web portal ________.

• A)finds only information which is aimed at the public and consumers
• B)accesses free information exclusively
• C)is not of much use in a professional environment
• D)omits information in publications that require a subscription
• E)performs federated searches

---

Definitions:

T-statistic

A type of statistic used to estimate the significance of a parameter derived from a sample data set.

Statistically Significant

A determination that the observed effects or differences in data are unlikely to have occurred by chance, according to a pre-determined threshold.

Null Hypothesis

A statement in statistical analysis that proposes there is no significant difference or relationship between specified populations, or no effect of a treatment.

Region of Rejection

The range of values in a statistical test that leads to the rejection of the null hypothesis, indicating a statistically significant result.